[NETFILTER]: Add "revision" support to arp_tables and ip6_tables

[karo-tx-linux.git] / include / linux / netfilter_arp / arp_tables.h

diff --git a/include/linux/netfilter_arp/arp_tables.h b/include/linux/netfilter_arp/arp_tables.h
index d759a637bdedbb54f6b6aecdc8ae01a71907c930..e98a870a20be368e099a688dddd8e92f7dbec4f7 100644 (file)
--- a/include/linux/netfilter_arp/arp_tables.h
+++ b/include/linux/netfilter_arp/arp_tables.h
@@ -68,7 +68,8 @@ struct arpt_entry_target
                        u_int16_t target_size;
 
                        /* Used by userspace */
-                       char name[ARPT_FUNCTION_MAXNAMELEN];
+                       char name[ARPT_FUNCTION_MAXNAMELEN-1];
+                       u_int8_t revision;
                } user;
                struct {
                        u_int16_t target_size;
@@ -148,7 +149,9 @@ struct arpt_entry
 
 #define ARPT_SO_GET_INFO               (ARPT_BASE_CTL)
 #define ARPT_SO_GET_ENTRIES            (ARPT_BASE_CTL + 1)
-#define ARPT_SO_GET_MAX                        ARPT_SO_GET_ENTRIES
+/* #define ARPT_SO_GET_REVISION_MATCH  (ARPT_BASE_CTL + 2)*/
+#define ARPT_SO_GET_REVISION_TARGET    (ARPT_BASE_CTL + 3)
+#define ARPT_SO_GET_MAX                        ARPT_SO_GET_REVISION_TARGET
 
 /* CONTINUE verdict for targets */
 #define ARPT_CONTINUE 0xFFFFFFFF
@@ -236,6 +239,15 @@ struct arpt_get_entries
        struct arpt_entry entrytable[0];
 };
 
+/* The argument to ARPT_SO_GET_REVISION_*.  Returns highest revision
+ * kernel supports, if >= revision. */
+struct arpt_get_revision
+{
+       char name[ARPT_FUNCTION_MAXNAMELEN-1];
+
+       u_int8_t revision;
+};
+
 /* Standard return verdict, or do jump. */
 #define ARPT_STANDARD_TARGET ""
 /* Error verdict. */
@@ -274,7 +286,9 @@ struct arpt_target
 {
        struct list_head list;
 
-       const char name[ARPT_FUNCTION_MAXNAMELEN];
+       const char name[ARPT_FUNCTION_MAXNAMELEN-1];
+
+       u_int8_t revision;
 
        /* Returns verdict. */
        unsigned int (*target)(struct sk_buff **pskb,